On Wed, Oct 25, 2006 at 06:00:39PM +0200, p.a.boncz@chello.nl wrote:

Hi Jens,

Well, you had me reading the flex manual there, after which I must still conclude that our modification is parsable.

What I meant from the start is that one can match the operator keywords after which a "(" can legally occur (eq, etc) with preference over QName_LParam. See the below diff.

There are also ways of doing that without REJECT, if your religion does not permit its use. e.g.: ("eq"|("eq"/{_}"(")) { gotoState (DEFAULT); yield (eq); }

The MIL parser is a mess; but gladly its internals should play no role in this discussion.

Hi Peter, I cannot see where this shall head. Why would we, under all circumstances, try to mess up Pathfinder's parser? As far as I can see, *all* the proposals made by other people do use some syntax that aids parsing. The XQuery syntax itself built its way for good reason, and both approaches we had are very much in the flavor of XQuery. I cannot see why we would want to give that up. I *strongly* vote for using either of the following two options: -- execute at { Expr } { FunctionCall } -- execute at Expr xquery FunctionCall Both, in my opinion, are clean and in line with the remaining language.

From a parser point of view, we could leave out the *second* pair of curly braces, but that would only make things inconsistent.

Also, I cannot understand why you insist on introducing your very own syntax for XRPC. There have been other proposals. In the spirit of interoperability, experimentation, comparison, etc. I think the adaption of existing syntax is a good idea. It would help increasing our system's acceptance and visibility, I argue. (I brought the MIL parser into the discussion, because I thought that would put you off any attempts to lower the quality of Pathfinder's parser.) Jens -- Jens Teubner Technische Universitaet Muenchen, Department of Informatics D-85748 Garching, Germany Tel: +49 89 289-17259 Fax: +49 89 289-17263 Linus Torvalds is a lot like Bill Gates. Both are about the same height. -- USA Today